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Old 05-14-2014, 05:21 PM   #21
sportcoupe
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Default Re: Anyone using lithium batteries?

Quote:
Originally Posted by interstate View Post
Another thought on charging, again from other interests and experiences not related to EV.

We run our batteries in series to achieve our desired voltage. All cells have the same capacity. We then charge our batteries in parallel, which allows each cell to charge fully and then spill over the current from the charger into the slower charging cells. A balance monitoring wire is connected to each group of parallel cells to monitor those combined cells as a whole.

How does your charging system work?
I will just charge in series with a modified golf cart charger. It has a lithium algorithm programmed to charge to 4.2v (nissan leaf cells) and hold constant voltage until the current drops to under 1A.
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Old 05-16-2014, 03:38 AM   #22
anthonywebb
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Default Re: Anyone using lithium batteries?

Love to know what you are into all the bits and pieces to make Lipo work properly. Looking forward to following this thread.
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Old 05-17-2014, 12:29 PM   #23
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Default Re: Anyone using lithium batteries?

Bottom balancing finished. Started charging the complete pack today.

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Old 05-22-2014, 08:01 AM   #24
caokgafamily
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Default Re: Anyone using lithium batteries?

Sport,

Is there any overheating problems you need to be concerned about with these batteries?

Steve
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Old 05-22-2014, 12:28 PM   #25
kuntryboy
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Bottom balancing finished. Started charging the complete pack today.

So what was the total charge time after bottom balanced?

Sent from my SCH-I545 using Tapatalk
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Old 05-22-2014, 02:29 PM   #26
sportcoupe
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Default Re: Anyone using lithium batteries?

About 11.5 hours using a 15 amp charger.
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Old 05-26-2014, 07:55 PM   #27
TerryH
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Default Re: Anyone using lithium batteries?

Looking good SC!!! Any updates?
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Old 05-26-2014, 08:05 PM   #28
sportcoupe
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Default Re: Anyone using lithium batteries?

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Looking good SC!!! Any updates?
I started my own build thread here:
http://www.buggiesgonewild.com/elect...txt-build.html

I am doing long travel lift with semi-custom triangulated 4 link rear long travel AND lithium batteries in a TXT.
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Old 05-26-2014, 08:06 PM   #29
sportcoupe
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Default Re: Anyone using lithium batteries?

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Sport,

Is there any overheating problems you need to be concerned about with these batteries?

Steve
Sorry late reply. The Nissan Leaf batteries are air cooled. I don't expect any heat concerns.
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